When a gas changes into a liquid, it is called and the speed of the molecules is a. condensation; increasing b. evaporation; decreasing c. condensation; decreasing d. sublimation; increasing

What is the value of x when x + 7 = 21?

With alll of except for the 2 that i did already

Without multiplying, tell which product is larger and why. 5 × 1/3 or 5 × 2/3 a)5 × 1/3 because 1/3 is less than 2/3 b) 5 × 1/3 because 1/3 is greater than 2/3 c) 5 × 2/3 because 1/3 is less than 23 d) 5 × 23 because 1/3 is greater than 2/3